Home / 213,550.23-320,907.33-113,781.72

Finding the Fourth Proportional to 213,550.23, 320,907.33 and 113,781.72

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Solution

The fourth proportional to 213,550.23, 320,907.33 and 113,781.72 is: 170,982.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,550.23 : 320,907.33 = 113,781.72 : x
  2. Step 2: Convert to fraction form
    213,550.23/320,907.33 = 113,781.72/x
  3. Step 3: Cross multiply
    213,550.23x = 320,907.33 × 113,781.72
  4. Step 4: Simplify right side
    213,550.23x = 36,513,387,968.01
  5. Step 5: Solve for x
    x = 36,513,387,968.01/213,550.23
  6. Step 6: Final answer
    x = 170,982.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.